-
501
-
502
Mid-Norian to Hettangian record and time-specific oolites during the end-Triassic Mass Extinction at Wadi Milaha, Musandam Peninsula, United Arab Emirates
Published 2023-06-01“…The end-Triassic Mass Extinction (ETME) is generally regarded as a consequence of the environmental changes associated with the emplacement of the Central Atlantic Magmatic Province (CAMP) and ranks among the ‘big five’ mass extinctions in Earth history. A notable feature of the ETME is a halt in marine carbonate deposition followed by the formation of unusual facies such as carbonate cement fans and oolites in the early aftermath of the event. …”
Get full text
Article -
503
-
504
AGES OF THE ONSET OF MARLY SEDIMENTATION AND OF THE BLACK SHALES IN THE TUSCAN BASIN (NORTHERN APENNINES, ITALY)
Published 2008-11-01“…The boundary between these formations lies within the nannofossil NJT5 Lotharingius hauffii Zone (uppermost Pliensbachian to lower Toarcian), the lower portion of the Calcari e marne a Posidonia ranges from the nannofossil NJT5 Lotharingius hauffii Zone to the NJT7 Discorhabus striatus Zone (middle Toarcian) and the organic-rich interval lies in the nannofossil NJT6 Carinolithus superbus Zone (lower Toarcian). …”
Get full text
Article -
505
Borehole MET-1/04 near Metlika, between the External and Internal Dinarides (SE Slovenia)
Published 2005-06-01“…The bore hole itself is located in the flysch sequence of Upper Cretaceous age that is deposed transgressivelly onto theUpper Jurassic limestone. The flysch, that is composed of conglomerate, breccia, calcarenite and marl, is drilled to 182,5 m of depth. …”
Get full text
Article -
506
-
507
-
508
-
509
Igneous Records of Mongolia–Okhotsk Ocean Subduction: Evidence from Granitoids in the Greater Khingan Mountains
Published 2023-03-01“…Zircon LA–ICP–MS U–Pb dating indicates that two samples from the Heihe area were formed in the Early Jurassic period (194.2 ± 1.4 Ma and 183.1 ± 1.3 Ma), and the εHf(t) values and TDM<sub>2</sub> of the zircons were mainly +5.8 to +10.7 and 528 Ma to 834 Ma, respectively, with a large variation range. …”
Get full text
Article -
510
-
511
-
512
Hydrogeochemical processes and groundwater chemistry in the West Siberia
Published 2022-12-01Get full text
Article -
513
-
514
Tracking and Evaluating the Concentrations of Natural Radioactivity According to Chemical Composition in the Precambrian and Mesozoic Granitic Rocks in the Jangsu-gun Area, Central...
Published 2021-06-01“…The mean values of U (ppm) and Th (ppm) of the Middle Paleoproterozoic orthogneisses (6.4 and 20.5, respectively), Late Triassic granites (1.5 and 10.9), and Early Jurassic granites (3.5 and 16.5) were similar to those (5 and 15) of the granitic rocks in the Earth’s crust. …”
Get full text
Article -
515
Reason for abnormally high drying coefficient of natural gas in Cainan area, Junggar Basin
Published 2023-03-01“…In addition, the bulk carbon isotope of calcite is negatively biased, which is 5‰-10‰ more negative than that of normal calcite. …”
Get full text
Article -
516
-
517
Geology of Planina pri Jezeru and its environs (Slovenia)
Published 2008-06-01“…The article supplements existing lithostratigraphic information by defining exact locations of the Pleistocene sediments at Planina pri Jezeru and Planina v Lazu, and of Jurassic rocks. In Poljane a Neptunian dyke and bioclastic limestone, while north of Mizčna glava a flat-bedded microsparitic limestone were described for the first time.Correlation to the Triglav Lakes Valley Jurassic beds indicates equivalent facieses. …”
Get full text
Article -
518
Coalbed Methane Enrichment Regularity and Model in the Xishanyao Formation in the Santanghu Basin, NW China
Published 2023-10-01Get full text
Article -
519
-
520